Hello Yoan Boulinguez - Chapel,
Welcome to the Microsoft Q&A and thank you for posting your questions here.
I understand that you are having issue scanning Fabric asset using purview.
Regarding your questions:
Is this limitation known?
Yes, this limitation with the Purview connector is known.
How can I get around it?
Scan Microsoft Fabric Items in Microsoft Purview: https://techcommunity.microsoft.com/t5/security-compliance-and-identity/scan-microsoft-fabric-items-in-microsoft-purview/ba-p/4041470
Check more information from the below links, hopefully you're a commercial customer:
- https://petri.com/microsoft-purview-fabric-items/
- https://learn.microsoft.com/en-us/purview/data-quality-for-fabric-data-estate
- https://learn.microsoft.com/en-us/fabric/governance/microsoft-purview-fabric
I hope this is helpful! Do not hesitate to let me know if you have any other questions.
Please don't forget to close up the thread here by upvoting and accept it as an answer if it is helpful.